<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDiglogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="userList" stripe border>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="用户名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialogVisible(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="showAllotRoleDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDiglogVisible" width="50%" @close="addDialogClose">
      <!-- 内容主体区 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRel" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDiglogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRel" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="modifyUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配用户角色"
      :visible.sync="showAllotUserDialogVisible"
      width="50%"
      @close="clearAllotRoleDialogData()"
    >
      <div>
        <p>当前用户: {{userInfo.username}}</p>
        <p>当前用户角色 {{userInfo.role_name}}：</p>
        <p>
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="showAllotUserDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotUserRole()">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
  </div>
</template>

<script>
export default {
  data() {
    // 自定义邮箱校验规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^[a-zA-Z0-9]+([-_.][a-zA-Z0-9]+)*@[a-zA-Z0-9]+([-_.][a-zA-Z0-9]+)*\.[a-z]{2,}$/;
      if (regEmail.test(value)) return cb();
      return cb(new Error("请输入合法的邮箱"));
    };

    //自定义电话号码校验规则
    var checkmobile = (rule, value, cb) => {
      const regMobile = /^((13[0-9])|(17[0-1,6-8])|(15[^4,\\D])|(18[0-9]))\d{8}$/;
      if (regMobile.test(value)) return cb();
      return cb(new Error("请输入合法的手机号码"));
    };

    return {
      // 查询数据请求参数
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 4,
      },
      userList: [],
      total: 0,
      //添加用户对话框的显示和隐藏
      addDiglogVisible: false,
      //修改用户对话框显示和隐藏
      editDialogVisible: false,
      //给用户分配角色对话框的显示和隐藏
      showAllotUserDialogVisible: false,
      userInfo: {},
      roleList: [],
      // 已选中的角色Id值
      selectedRoleId: "",

      // 添加用户表单数据对象
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },

      //修改用户数据
      editForm: {
        id: "",
        username: "",
        email: "",
        mobile: "",
      },

      //添加用户表单规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度在3-10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "密码长度在6-15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱地址", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入电话", trigger: "blur" },
          { validator: checkmobile, trigger: "blur" },
        ],
      },
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱地址", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入电话", trigger: "blur" },
          { validator: checkmobile, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    //获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败");
      }
      this.userList = res.data.users;
      this.total = res.data.total;
      console.log(res);
    },
    // 监听pageSize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newNum) {
      this.queryInfo.pagenum = newNum;
      this.getUserList();
    },

    // 监听switch开关状态的改变
    async userStateChange(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户失败！");
      }
      this.$message.success("更新状态成功");
    },

    //监听对话框关闭事件
    addDialogClose() {
      this.$refs.addFormRel.resetFields();
    },

    //添加用户
    addUser() {
      // 预校验
      this.$refs.addFormRel.validate(async (valid) => {
        if (!valid) return;
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) this.$message.error("添加用户失败");
        this.$message.success("添加用户成功");
        this.addDiglogVisible = false;
        this.getUserList();
      });
    },

    //显示修改用户对话框
    async showEditDialogVisible(id) {
      this.editDialogVisible = true;
      console.log(id);
      //调用函数获取
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) this.$message.error("请求用户数据失败！");
      this.editForm = res.data;
      this.editDialogVisible = true;
    },

    //对话框关闭重置
    editDialogClosed() {
      this.$refs.editFormRel.resetFields();
    },

    //提交修改用户
    modifyUser() {
      this.$refs.editFormRel.validate(async (valid) => {
        if (!valid) return;
        // 验证通过发起网络请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );
        if (res.meta.status !== 200) this.$message.error("修改用户失败");
        this.$message.success("修改用户成功");
        this.editDialogVisible = false;
        this.getUserList();
      });
    },

    //删除用户
    async removeUserById(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((error) => error);

      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }

      const { data: res } = await this.$http.delete("users/" + id);

      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败！");
      }
      this.getUserList();
    },

    // 显示分配角色对话框
    async showAllotRoleDialog(user) {
      this.userInfo = user;
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) this.$message.error("获取角色列表失败");
      this.roleList = res.data;
      this.showAllotUserDialogVisible = true;
    },

    // 分配角色 接口报错
    async allotUserRole() {
      if (!this.selectedRoleId) {
        return this.$message.error("请选择要分配的角色");
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId,
        }
      );
      if (res.meta.status !== 200) return this.$message.error("分配角色失败");
      this.$message.success("分配角色成功");
      this.getUserList();
      this.showAllotUserDialogVisible = false;
    },

    // 监听分配角色对话框关闭和数据的清空
    clearAllotRoleDialogData() {
      (this.selectedRoleId = ""), (this.userInfo = {});
    },
  },
};
</script>

<style lang="less" scpoed>
</style>